A Comparative Study of Total Knee Arthroplasty and Unicondylar Knee Arthroplasty in the Treatment of Knee Osteoarthritis

Table 4

Comparison of knee ROM changes before and after operation (mean ± SD).

Group	Range of motion (ROM) of knee		t	value
	Preoperation	5d after operation
UKA group (n = 15)	109.43 ± 1.24	135.38 ± 1.67	−21.609	≤0.001
TKA group (n = 15)	109.58 ± 1.15	126.43 ± 2.06	−12.265	≤0.001
value	−0.154	5.846
	0.004	0.580

UKA, unicondylar knee arthroplasty; TKA, total knee arthroplasty; , 5d after operation vs. preoperation. , UKA group vs. TKA group.